After smoking for most of my life, I quit about 18 years ago. It took several tries. What clinched it for me was that among other duties, I was welding. Because I smoked, I wore no mask, Helmet down, weld, helmet up, smoke .... by the time I went home, I was coughing up so much stuff I could have tarred my driveway. I finally managed with Nicorette. Then I was hooked on that, until I got mouth sores, but eventually I quit that also. The rest of the story is that after a recent health episode it was discovered that I had chronic bronchitis. My doctor said it was due to my smoking, even though I quit 18 years ago. So now I have a Duaklir inhaler which I have to take each morning. It is under control now.